82results about How to "Enhanced turbulence effect" patented technology

The invention relates to an aerosol single-droplet monitoring device and method in a real atmosphere, belongs to the field of aerosol single-droplet detection, and solves the problem that an existing aerosol single-droplet monitoring device cannot monitor the property change of a single droplet in the real atmosphere or the detection error of the saturated vapor pressure of the single droplet is large. A gas path system of the device comprises a real atmosphere gas path system, the real atmosphere gas path system is communicated with a single-droplet optical tweezers suspension device, a microdroplet pumping system is communicated with the single-droplet suspension system, and a light beam coupling system is respectively communicated with the single-droplet optical tweezers suspension device, a signal detection system and a microdroplet detection device; the real atmosphere gas path system comprises a first gas path and a second gas path, the first gas path and the second gas path are both communicated with real atmosphere, the first gas path and the second gas path are respectively communicated with the single-droplet optical tweezers suspension device, the second gas path is provided with a gas pumping device, and the gas pumping device is a vacuum pump or an air compressor; the device can monitor the property change of the single liquid drop in the real atmosphere.

The present invention provides a novel frameless torque motor for a humanoid robot, comprising a support structure; a stator for generating a rotating magnetic field, wherein the number of the stators is several and evenly distributed, and the side of the stator close to the support structure is fixedly connected to the inner ring of the support structure; and a rotor for generating a rotating motion under the influence of the magnetic field generated by the stator, wherein the rotor is located at the axis of the support structure. The present invention can input current to the stator through the connector by setting a support structure, a stator, a rotor, a connecting column, a cooling structure, a heat dissipation structure and a connector, so that the stator generates a rotating magnetic field, and the rotor generates a rotating motion under the influence of the magnetic field generated by the stator. The cooling structure can cool the stator, and the heat dissipation structure can assist in heat dissipation. The heat dissipation structure can drive the liquid inside the cooling structure to move, thereby solving the problem of poor heat dissipation effect of the existing humanoid robot frameless torque motor.

The invention discloses carbon monoxide gas oxidative dehydrogenation equipment, which belongs to the field of carbon monoxide treatment and comprises a hollow shell, a gas inlet cover fixedly connected to the upper end of the hollow shell, a bottom plate fixedly connected to the inner wall of the hollow shell and a first exhaust port formed in the lower end of the bottom plate. A first partition plate and a second partition plate located below the first partition plate are further fixedly connected to the inner wall of the hollow shell, and a flow passing cavity is formed between the upper portion of the first partition plate and the air inlet cover. The cooling air ring can exhaust oxygen to the inner wall of the reaction through hole, it is ensured that the oxygen is evenly distributed on the inner wall of the reaction through hole, the oxygen is prevented from being concentrated in a certain area, and therefore the catalytic reaction efficiency is improved; it is ensured that the catalytic reaction is evenly conducted in the whole catalyst, the situation that the reaction efficiency is reduced due to insufficient oxygen or unsmooth airflow in a local area is avoided, and it is ensured that reactants can be fully converted.

The invention relates to a mainstream anaerobic ammonia oxidation quick start and efficient stable operation method, which uses an immersed anaerobic ammonia oxidation granular sludge membrane biological composite reactor comprising an upflow anaerobic sludge blanket (UASB), and an MBR is immersed in the upper part of the upflow anaerobic sludge blanket (UASB); the height-diameter ratio of the UASB is 4-6, and the overall length of the MBR is 1 / 2-1 / 3 of the height of the UASB. The granulation of the sludge is realized through the UASB, and the enrichment capacity, the sedimentation performance and the stability of the sludge are improved; in the operation process of the mainstream Anammox, the complete retention of sludge functional bacteria is realized by adopting the operation of gradually shortening the hydraulic retention time and improving the nitrogen load and through the biological complete interception effect of the immersed MBR. In the granulation process of the sludge, the settling performance of the sludge is improved, a large amount of flocculent sludge is prevented from being in direct contact with membrane filaments, the membrane pollution problem in the membrane assembly is relieved, meanwhile, water flow shearing force generated around the membrane assembly can effectively wash pollutants on the surface of the membrane assembly, and the membrane pollution problem is further controlled.

This utility model relates to the field of chemical cooling technology, and provides a production device for cooling chemical mixtures, including a reaction vessel. A cooling chamber is provided on the outside of the reaction vessel, and a cooling pipe is provided inside the cooling chamber. The cooling pipe is wound around the outer wall of the reaction vessel. A stirring mechanism is provided inside the reaction vessel. Heat dissipation mechanisms are provided on both sides of the cooling chamber on the outside of the reaction vessel. By providing a stirring mechanism and a heat dissipation mechanism, this utility model can provide forced air cooling for the cooling pipe and cooling medium, accelerating the diffusion of heat to the environment. While improving the cooling effect, only one drive motor is needed to drive the stirring blades and the cooling fan at the same time, reducing the number of power devices, simplifying the equipment structure, and reducing energy consumption and maintenance costs.

The utility model discloses an emulsifier tail gas adsorption processing device, including the box, the feed inlet of box is provided with the filter bin, and the top of filter bin is provided with the air inlet pipe, be provided with the filter screen in the box, filter screen side is provided with adsorption cover, adsorption cover side is provided with the exhaust fan, the other end of exhaust fan is connected with the gas collecting pipe, the other end of gas collecting pipe is inserted in the liquid in the inner cylinder body, and is provided with the check valve on the gas collecting pipe, be provided with the stirring mechanism in the inner cylinder body, the inner cylinder body top is inserted with the exhaust pipe, and the exhaust pipe is connected with the purification ball, the outer portion of inner cylinder body is provided with tail gas cooling mechanism. The utility model discloses scientific and reasonable structure design, through motor drive pivot and stirring paddle rotation to agitate neutral liquid, make neutral liquid and tail gas contact area increase, and the neutral efficiency improves greatly, and the gas through processing is filtered after discharging to the collection device in the purification ball, improves tail gas absorption efficiency.

The application discloses a micro-fluidic chip and a method for recovering nucleic acids with different fragment sizes. The method can realize recovery of nucleic acids with different fragment sizes by repeatedly washing and recovering magnetic beads through the micro-fluidic chip. The method can improve the overall nucleic acid recovery effect by adjusting the adding concentration of the magnetic beads and PEG salt and the washing times, and can distinguish and control the nucleic acid length, and all the nucleic acids with different fragment lengths can be obtained by continuously adjusting the concentration. Moreover, the method can realize small volume, high throughput and automation.

The utility model discloses a liquid cooling plate which comprises an upper cover plate and a lower cover plate, and a main flow channel is formed between the upper cover plate and the lower cover plate; the water inlet nozzle is communicated with the water inlet of the main flow channel and is used for allowing a refrigerant to flow in; the water outlet nozzle is communicated with a water outlet, corresponding to the water inlet, of the main runner and is used for allowing a refrigerant to flow out; the heat exchange columns are arranged in the main flow channel, and the densities of the heat exchange columns in different areas in the main flow channel are different. According to the liquid cooling plate, the plurality of heat exchange columns are arranged, so that the structural strength of the liquid cooling plate can be enhanced, the contact area between a refrigerant and the flow channel wall can be increased, and the heat exchange efficiency is improved. Besides, the heat exchange columns with different densities are arranged in different areas, so that the flow distribution of the refrigerant in the flow channel can be optimized, the refrigerant is uniformly distributed, and the uniformity of the heat dissipation performance of the liquid cooling plate is improved.

This utility model discloses a nanoscale homogenizing device for cosmetic active ingredients, belonging to the field of cosmetic processing technology. It addresses the problem in existing technologies where, when cosmetic active ingredients require homogenization, agglomeration or stratification occurs, leading to a decrease in the initial mixing effect of the initial materials. This necessitates a longer homogenization time, thus reducing the working efficiency of the nanoscale homogenizing device. The device includes a base, a second motor, a cylinder, a feed inlet, a feed hopper, a fixed plate, a first motor, a first synchronous pulley, a synchronous belt, a second synchronous pulley, a stirring rod, a flange, a connecting pipe, a crossbar, and an impact block. The impact block is conical in shape, the feed hopper is cylindrical, and flanges are installed at both ends of the connecting pipe.

This application relates to the technical field of dust removal, and in particular to a multi-stage dust removal device and method for coal mine roadways with impact resistance. The device includes an upward-opening water tank with an outlet on the side. A rotating shaft is rotatably mounted on the bottom of the water tank via a bearing. A cavity for air passage is formed inside the rotating shaft. A pushing mechanism is installed on the part of the rotating shaft located inside the water tank, and a pre-treatment mechanism that cooperates with the cavity is installed on the top of the rotating shaft. The pushing disc and the fan-shaped plate cooperate to push impurities floating on the water surface upward, which can effectively remove floating impurities on the water surface and prevent them from forming a barrier film on the water surface. This creates an unobstructed channel for gas diffusion. That is, when the water surface is kept clean and unobstructed, the gas can escape from the water surface more smoothly, the separation efficiency of impurities and gas is significantly improved, and thus the dust removal effect of the gas is greatly improved.

The utility model relates to the field of electronic equipment, in particular to a variable channel type heat dissipation cold plate which comprises an end cover and a heat dissipation cavity which jointly form a three-section type heat dissipation channel. The heat dissipation channel sequentially comprises a first heat dissipation channel section with the large width, a second heat dissipation channel section with the large width and a third heat dissipation channel section with the small width in the flow direction of cooling airflow. The first heat dissipation channel section is provided with a plurality of large-diameter hollow heat dissipation columns which are filled with phase change materials, the third heat dissipation channel section is provided with small-diameter solid heat dissipation columns which are densely arranged, and airflow transition is achieved between the first heat dissipation channel section and the third heat dissipation channel section through a flow guide plate of the second heat dissipation channel section; through the design of the differentiated heat dissipation columns, large-flow rapid heat dissipation is achieved in the first channel section, and the turbulence effect is enhanced in the third channel section; the heat dissipation efficiency and the temperature uniformity are remarkably improved by combining the transient heat absorption characteristics of the heat conduction boss in direct contact with a heat source and the phase change material; the structure is compact, and is especially suitable for heat dissipation requirements of high-power-density electronic equipment.

This utility model relates to the field of semiconductor manufacturing equipment, and more particularly to an annealing support for monocrystalline silicon wafers. The support includes a water tank and water pipes. Several support rods are connected to the top of the water tank, and a buffer layer is connected to the top of all the support rods. A gear ring is rotatably connected to the top of the buffer layer. A mounting bracket is connected to the side of the buffer layer, and a motor is mounted at the bottom of the mounting bracket. A gear is connected to the motor's output shaft, meshing with the gear ring. Cooling blades are connected to the top of the gear ring, and a flow distribution layer is connected to the top of the cooling blades. A rotating connecting seat is rotatably connected to the top of the flow distribution layer. The top of the rotating connecting seat is connected to the bottom of the water tank via a water pipe. A water pump is installed at one end of the water pipe inside the water tank. The internal flow channels of the cooling blades enhance the turbulence of the coolant and achieve uniform distribution. Combined with the plate heat exchange structure of the cooler, the heat exchange efficiency is improved, allowing heat from the silicon wafer surface to be rapidly transferred to the coolant through forced convection, reducing the temperature difference within the wafer and improving the temperature uniformity of the annealing process.

The invention discloses a portable intelligent charger, which is characterized in that the charger is placed in a wrapping groove, so that the charger extrudes an elastic rubber layer under the action of self weight, and the extrusion force is transmitted to cooling liquid in a liquid storage cavity, so that the cooling liquid surges towards a part which is not extruded by the charger until the charger is completely wrapped in the wrapping groove; at the moment, the top of the elastic rubber layer is not directly extruded by the charger, so that a part of cooling liquid surges upwards, the elastic rubber layer at the position expands and wraps the side edge of the top end of the charger, and three side walls, the side edge of the top end and the bottom end of the whole charger are directly wrapped; and external vibration needs to be firstly transmitted to the external outer sleeve frame and then transmitted to the charger, at the moment, vibration of the charger is transmitted to the elastic rubber layer and is buffered and protected by the cooling liquid, and damage to the charger caused by external vibration is reduced.

The utility model discloses a bio-organic fertilizer production mixing device which comprises a tank body, a discharge port is arranged at the bottom of the tank body, two pairs of feed ports are distributed on the upper wall of the tank body in an annular array shape, a feed hopper is arranged above the feed ports, a motor is arranged at the center of the upper wall of the tank body, and the feed hopper is connected with the motor. The utility model relates to the technical field of bio-organic fertilizer production, the device is compact in structure, through the arrangement of a plurality of feed ports, each raw material can respectively enter from different feed ports, and through the cooperation with the rotating material blocking disc, the discharge ports formed in the rotating material blocking disc are overlapped with the feed ports in sequence, so that the production efficiency is improved, and the production cost is reduced. The raw materials sequentially fall into the tank body at intervals in batches and can be fully and uniformly mixed in cooperation with the stirring assembly, the situation that the mixing efficiency is affected due to the fact that the raw materials are poured into the tank body at a time is avoided, flowing of the materials can be disturbed through the auxiliary stirring mechanism, the turbulent flow effect of flowing of the materials is improved, and therefore the mixing uniformity is improved, and convenience is brought to use of people.

The present invention discloses a flow channel assembly for a membrane element, the flow channel assembly comprises: a flow channel element, the flow channel element is concaved inwards to form a plurality of concave structures and is convex outwards to form a plurality of convex structures, and the plurality of concave structures and the plurality of convex structures are distributed in a staggered manner; the flow channel element comprises a water inlet section, a transition section and a water outlet section in the first direction, and the density of the multiple concave structures and the density of the multiple convex structures are gradually increased in sequence along the water inlet section, the transition section and the water outlet section. Through the gradient design that the density of the concave-convex structures of the water inlet section, the transition section and the water outlet section is gradually increased, water flow resistance at the water inlet end is reduced, pressure loss is reduced, and it is guaranteed that water flow enters rapidly and stably; the transition section realizes stable transition of water flow from a low-resistance state to a high-turbulence state and prevents the water flow from impacting the surface of the membrane; the high-density concave-convex structure at the water outlet end generates strong turbulence to effectively scour a concentration polarization layer on the surface of the membrane, low resistance and high turbulence are both considered, the scale deposition risk is reduced, and the service life of the membrane element is prolonged.

The utility model relates to the technical field of heat exchangers, and discloses a coiled tube type heat exchanger which comprises a shell and two tube boxes arranged at the two ends of the shell correspondingly, a shell pass material inlet and a shell pass material outlet are formed in the two ends of the peripheral side of the shell correspondingly, and a tube pass material inlet and a tube pass material outlet are formed in the two tube boxes correspondingly. A tube plate is arranged between each tube box and the shell, a heat exchange tube spirally arranged in the axial direction of the shell is arranged between the two tube plates, the two ends of the heat exchange tube penetrate through the tube plates respectively, a disturbance part is arranged in the shell, the shell pass material inlet is provided with a driving part in transmission connection with the disturbance part, and when shell pass materials enter the shell through the shell pass material inlet, the disturbance part is driven by the driving part to disturb the disturbance part. The driving part drives the disturbance part to rotate under the action of the shell pass material so as to disturb the shell pass material in the shell, so that the turbulence effect of the shell pass material in the shell is improved, the heat exchange time of the shell pass material and the tube pass material is prolonged, and the heat exchange efficiency of the coiled tube type heat exchanger is improved.

The utility model discloses a flat type evaporator which comprises a plurality of radiating fins and a heat exchange pipe body, the heat exchange pipe body is an S-shaped bent pipe body which extends and is flatly laid in the vertical direction, and the vertical pipe body part of the heat exchange pipe body is inserted into all the radiating fins in a sleeved mode. The heat dissipation fins are rectangular fin bodies, a plurality of long through grooves are formed in each heat dissipation fin body, extending limiting parts are formed on the two inner side walls of the middle of each long through groove, the two ends of each long through groove are arc-shaped wall faces, arc-shaped connecting edges extending upwards are formed on the arc-shaped wall faces, and vertical pipe body parts are inserted into the ends of the corresponding long through grooves in a sleeved mode. The heat exchange pipe body is arranged in a single layer, so that the thickness of the manufactured evaporator is greatly reduced, the heat exchange pipe body can be installed on a rear wall plate of the refrigeration cabinet, the height of a storage space of the refrigeration cabinet is not affected, the storage space of the refrigeration cabinet is guaranteed, and the wavy protruding parts formed on the heat dissipation fins not only improve the strength, but also improve the heat dissipation efficiency. And the turbulence effect of air flowing through the heat dissipation fins is improved, the time of the air in the heat dissipation fins is prolonged, and the heat exchange effect is improved.

The utility model discloses a dust remover cooling device for secondary aluminum alloy production, which belongs to the technical field of flue gas cooling and comprises an air cooling box, a plurality of shunt pipes are longitudinally arrayed in the air cooling box, conical cavities are detachably connected to the top surface and the bottom surface of the air cooling box, the conical cavity at the top is communicated with a flue gas inlet pipe, and the conical cavity at the bottom is communicated with a flue gas outlet pipe. The top end of the shunt pipe extends out of the top surface of the air cooling box and is communicated with the conical cavity communicated with the flue gas inlet pipe; the bottom end of the shunt pipe extends out of the bottom surface of the air cooling box and is communicated with the conical cavity communicated with the flue gas outlet pipe; an air inlet and an air outlet are respectively formed in two opposite side surfaces of the air cooling box; a fan is correspondingly and fixedly connected outside the air inlet; a spiral flow deflector is arranged in the flow dividing pipe and detachably connected with the flow dividing pipe. Through the innovative structural design, the high-temperature flue gas cooling device has remarkable advantages in the aspects of high-temperature flue gas cooling efficiency, equipment maintenance convenience and the like.

The invention relates to the field of tail gas separation, and discloses a tail gas treatment device for a mixing tank. The condensation cavity, the recovery cavity and the filter cavity are arranged in the treatment tank body, and the filter cavity is filled with filler; the air cooling cavity is formed in the treatment tank body and located at the top of the condensation cavity, the air cooling cavity is communicated with the filtering cavity, and the filtering cavity is communicated with the recycling cavity; through systematic optimization of a tail gas treatment process, combination of multiple effects of the rotary condensation pipe, the air cooling pipe and the dynamic disturbance filler filtering cavity and pre-cooling design, the temperature of the tail gas is obviously reduced before the tail gas enters the condensation pipe, the condensation efficiency is greatly improved, the burden of a condensation medium is relieved, fluctuation of the flow speed of the tail gas can be adapted, and the tail gas treatment effect is improved. Therefore, the problem of poor condensation effect caused by high temperature of tail gas in the prior art is effectively solved.

The invention discloses an all-welded plate heat exchanger, and relates to the technical field of plate heat exchangers, the all-welded plate heat exchanger comprises a heat exchanger body, the heat exchanger body is assembled in a welding mode, one side of the heat exchanger body is provided with a water inlet and a water outlet, the other side of the heat exchanger body is provided with an oil inlet and an oil outlet, and the heat exchanger body communicates with a water inlet pipe through the water inlet; a stirring mechanism is arranged in the water inlet pipe and configured to disturb water flow, the water inlet pipe is connected with a liquid inlet mechanism, an adjusting mechanism is arranged on the inner wall of the water inlet pipe, and the stirring mechanism drives the liquid inlet mechanism to intermittently add the scale inhibitor into the water flow through the adjusting mechanism. The rotating shaft can be driven to rotate in the rotating process of the fan blades, the rotating shaft drives the rotating rod to rotate, the rotating rod can discontinuously stir the two stirring blocks, the two stirring blocks can move towards the spring direction, the stirring blocks drive the sliding plate to compress the spring along the sliding cavity, and the sliding plate can drive the pressing plate to move; and the scale inhibitor is conveyed into the water flow to generate a scaling inhibition effect.

The present invention belongs to the technical field of vitamin D3 synthesis, specifically, a photochemical reaction device and synthesis method for vitamin D3 synthesis, including a reactor, a jacket, a light cylinder and a spiral tube; the reactor is provided with a water inlet at the top and a drain at the bottom; the jacket is divided into an inner filter chamber and an outer filter chamber; the inner filter chamber and the outer filter chamber are connected with a liquid injection pipe at the top; a high-pressure mercury lamp is provided inside the light cylinder; the spiral tube is connected with a feed pipe at the top and a discharge pipe at the bottom. The spiral tube is used to transport the reaction raw materials, so that the raw materials can be exposed to light to the greatest extent and undergo a synthesis reaction, which not only realizes continuous and uninterrupted production, but also can take into account the output of vitamin D3 to the greatest extent, meet large-scale industrialization needs, and the spiral tube is completely immersed in cooling water, so that the cooling water directly exchanges heat with the high-temperature material through the spiral tube wall from all directions, thereby improving the cooling efficiency of the raw materials.

The present invention discloses a U-shaped shell and tube type high-efficiency fuel and lubricating oil radiator, including an inserted head, a tube sheet, a tube bundle and a sheet metal integral spiral baffle. A cross-shaped partition is arranged on one end face of the inserted head, a cross-shaped slot is arranged on one end face of the tube sheet, and the tube sheet is plugged and matched with the cross-shaped partition of the inserted head through the cross-shaped slot and welded to form four partitions, each partition corresponds to a baffle chamber of a tube pass, the tube bundle is a U-shaped tube, and the U-shaped tube has a plum blossom groove pressed inside or a spoiler groove processed on the surface, the two ends of the tube bundle are respectively plugged into the tube sheet, and the two ends of the tube bundle are respectively located in different partitions; the spiral baffle is a sheet metal integrally formed structure and forms a shell pass with the shell assembly, the sheet metal integral spiral baffle has an inclination angle and a turning angle with the tube bundle flow direction, and the tube bundle is plugged with the spiral baffle. The fuel and lubricating oil radiator of the present invention meets the design requirements of light weight, compact structure, not easy to deform under high temperature difference of fuel oil, high heat transfer efficiency and good reliability.

The utility model discloses a kind of evaporators for super-low temperature cryotherapy cabin in the technical field of cryotherapy cabin, including the shell of being fixed on the back of cryotherapy cabin, shell is sequentially provided with precooling chamber, evaporator body and mixing chamber from below to above along vertical direction in;Precooling chamber is equipped with precooling component for using cryotherapy cabin exhaust end waste gas recovery cold quantity to carry out preliminary cooling to fresh air;Evaporator body is used to cool fresh air after precooling to target low temperature;The top of shell is equipped with dosing component for atomizing and spraying medicine to mixing chamber, mixing chamber is used to mix atomized medicine with target low temperature fresh air, and mixed gas is delivered to cryotherapy cabin inside.The device is set through the double cooling structure of precooling component and evaporator body, not only effectively improve the comprehensive utilization of cold quantity, reduce the load of evaporator body, significantly reduce liquid nitrogen consumption.

The utility model belongs to the technical field of natural gas engines, and particularly relates to a supercharged natural gas engine air inlet structure which comprises an air inlet bent pipe, flanges are connected to the outer side surfaces of the two ends of the air inlet bent pipe, and through limiting holes are formed in the surfaces of one sides of the flanges. Through the mutual cooperation of the mounting plate, the bearing, the rotating shaft and the fan blades, when mixed gas in the gas inlet elbow flows, the mixed gas can drive the fan blades on the rotating shaft to rotate in the bearing, so that the original laminar flow state of the gas is broken, the turbulent flow effect of the mixed gas is improved, and the service life of the gas inlet elbow is prolonged. Secondly, due to the arrangement of the protection mechanism, after the air inlet elbow is installed at a designated position through a flange, the end, exposed in the environment, of a bolt protrusion can be shielded by installing a blocking cover, so that the contact between the end, exposed in the environment, of the bolt protrusion is reduced, corrosion of the environment to the bolt is weakened, and the service life of the bolt is prolonged; therefore, the service life of the bolt is prolonged.

The utility model relates to the technical field of heat exchange sleeves, in particular to a middle-deep geothermal well heat exchange sleeve which comprises a main pipeline, an exhaust mechanism is arranged on the top of the main pipeline, the main pipeline and the exhaust mechanism are both located in a high-temperature stratum, and the exhaust mechanism comprises an installation pipe connected to the top end of the main pipeline. A plurality of sets of protruding columns are fixedly connected to the surface of the mounting pipe, sealing rings are fixedly connected to the outer side walls of the protruding columns, and the bottom ends of the protruding columns are hemispherical and located below the mounting pipe; a plurality of groups of through holes are formed in the bottom ends of the convex columns; waterproof breathable films are fixedly connected to the interiors of the through holes; and the waterproof breathable films are made of a high-temperature-resistant material. Through the cooperation of the main pipeline and the exhaust mechanism and the combination design of the waterproof breathable film and the protruding columns, water vapor is allowed to be discharged freely, liquid water is prevented from entering, air pressure in the pipeline is effectively reduced, downward water pumping resistance of the outer sleeve water pump is reduced, and heat exchange efficiency is improved.

The invention provides an immersed battery cell cold plate which comprises a hollow box plate and a heat exchange frame fixed in the hollow box plate, and a liquid inlet pipe and a liquid outlet pipe are mounted at two ends of one side wall of the hollow box plate; cooling liquid is filled between the heat exchange frame and the interior of the hollow box plate. The heat exchange frame comprises a first flow collecting chamber, a second flow collecting chamber and a heat exchange unit. The first flow collecting chamber and the second flow collecting chamber are both of a hollow structure, a partition piece is arranged in the first flow collecting chamber and divides the first flow collecting chamber into a liquid inlet cavity and a liquid outlet cavity which are independent, the liquid inlet cavity is communicated with a liquid inlet pipe, and the liquid outlet cavity is communicated with a liquid outlet pipe; the heat exchange units are a plurality of hollow plate bodies which are mounted between the first flow collecting chamber and the second flow collecting chamber and communicate the first flow collecting chamber with the second flow collecting chamber; and a plurality of turbulent flow strips are mounted on the inner wall of each heat exchange unit. The device is compact in structure, light in weight and low in nonferrous metal consumption; the material utilization rate is high and the manufacturability is good; the flow speed of cooling liquid in the cooling flow channel can be automatically adjusted through temperature changes.

The utility model discloses an efficient heat exchange unit with a filtering mechanism, which comprises a horizontal thermal insulation cylinder, the interior of the thermal insulation cylinder is a hollow heat exchange cavity, and a high-temperature medium inlet and a low-temperature medium outlet which are respectively communicated with the heat exchange cavity are oppositely arranged on the left side and the right side of the thermal insulation cylinder; a high-temperature medium outlet and a low-temperature medium inlet are oppositely formed in the left end and the right end of the top of the heat preservation barrel, a plurality of horizontally-arranged S-shaped heat exchange pipes are evenly arranged in the heat exchange cavity, and the two ends of each S-shaped heat exchange pipe communicate with the high-temperature medium outlet and the low-temperature medium inlet through connected special-shaped transition pipes correspondingly. The high-temperature medium inlet is hermetically connected with a first filtering mechanism which combines multiple filtering modes and is used for filtering a high-temperature medium, and the low-temperature medium inlet is hermetically connected with a second filtering mechanism which combines multiple filtering modes and is used for filtering a low-temperature medium. The heat exchanger not only can effectively remove impurities in a medium, but also can improve the heat exchange efficiency.

The utility model belongs to heat exchange technical field, specifically discloses a kind of spoiler, heat exchange device and gas water heating equipment. Spoiler includes long strip's spoiler plate, and spoiler plate is spaced apart with multiple spoiler through holes along length direction, each spoiler through hole has relatively and spaced apart first hole wall and second hole wall, each first hole wall is connected with first spoiler piece, each second hole wall is connected with second spoiler piece, and the projection of first spoiler piece and second spoiler piece corresponding to same spoiler through hole is set on spoiler plate with dislocation;The free end of adjacent two first spoiler pieces is located at the opposite sides of spoiler plate respectively, and the free end of adjacent two second spoiler pieces is located at the opposite sides of spoiler plate respectively. Heat exchange device includes heat exchange pipe and spoiler, and spoiler is inserted in heat exchange pipe. The utility model can improve the spoiler effect of spoiler, and then improve heat exchange uniformity.

The invention relates to the technical field of oil exploitation, and discloses a method for achieving lateral communication acid fracturing of an ultra-deep carbonate reservoir. The method comprises the steps that (1) high-viscosity fracturing fluid is injected for fracture forming; (2) sand-carrying fluid is injected to plug the ends of the fractures; (3) sequentially injecting a low-viscosity acid solution, a medium-viscosity acid solution and a high-viscosity acid solution in a manner of first constant displacement and then cyclic variable displacement, and carrying out acid etching on the lateral crack; (4) injecting an ultralow-viscosity acid solution for closed acidification; and (5) slickwater is injected for displacement operation. According to the method, firstly, acid liquid is rapidly injected in a constant-displacement mode, and at the moment, the acid liquid can reach the end of the crack at the fastest speed. The acid liquor injected in a circulating variable displacement mode cannot continue to extend forwards, and can only move, remain and be distributed in the side wing direction of the acid liquor fingering channel which the acid liquor enters previously, so that a turbulent flow effect can be generated at a plurality of points in the side wing direction of the main fingering channel, and the non-uniform etching effect of an acid liquor turbulent flow area is greatly improved.

A milking device (1) is provided with: a milking tool; a control unit (11); a milk line (5) for conveying milk from the milking tool to a milk tank (7); a milk filter (8) for filtering milk passing through the milk line (5); and a cleaning device for cleaning the milk filter (8) using a cleaning liquid (42). The milk filter (8) comprises: a housing (23) surrounding a filter (8) volume and having a milk inlet and a milk outlet; and a filter (8) component in the filter (8) volume. The filter (8) component comprises a circumferential plate portion (21) having filter holes (40), and the filter component divides the filter volume into a central inner filter volume (22) and an outer filter volume (24) surrounding the central inner filter volume. The milk filter (8) is configured to be flushed by milk to be filtered from the milk inlet to the milk outlet in use. The cleaning device is configured to clean the milk filter (8) by passing a cleaning liquid (42) through the milk filter (8) in successive pulses in a countercurrent direction, in such a way that: in each pulse, during a first pulse phase, more cleaning liquid (42) is supplied than is discharged; and subsequently, during a second pulse phase, at least an amount of cleaning liquid (42) equal to the amount of cleaning liquid (42) flowing out of the filter (8) volume is supplied. As a result, the amount of cleaning liquid (42) collected in the filter (8) volume rises to a liquid level surrounding at least some of the plurality of holes (40). The next pulse causes the cleaning liquid to collide with this liquid level, thereby improving the cleaning of the filter (8).